Defining that by "mils" you mean "milli-inches" or "thou" / "thousandths of an inch" as it would normally be called in UK would potentially help some European readers.
I recently saw a UK engineer wondering about (old) 300 "mil" and 600 "mil" dual-inline packages. This person thought "mil" referred to millimetres, but when asked "how big would that be then?" soon saw the light. :)
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.